Method of and apparatus for reproducing facsimile



(No Model.) 6 Sheets-Sheet 1.

, c. HASS.

METHOD 0F AND APPARATUS FOR REPRODUGING PAGSMILE G'ARVINGS IN WGO'L.

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6 Sheets-Sheet 2. O. HASS. METHOD OF AND APPARATUS PO REPRODUGINGVFAOSIMILE OARVINGS IN WOOD.

Patented Dec. 26, 1893.l

(No Model.) 6 Sheets-Sheet 3. C. HASS. METHOD 0F AND APPARATUS FR REPRODUGING FACSIMILE GARVINGS INV Woon..

No. 511,696. Pant@illeaDec.I 26,1893.

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Patented Dec. 26, 1893.

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C. HASS. METHOD 0I' AND APPARATUS FOR REPRODUGING' FACSIMILE GARVINGS IN WODD. No. 511,696.

6 Sheets-Sheet- 5. O. HASS. METHOD OI' AND APPARATUS FOR REPRODUOING FACSIMILE OARVINGS IN WOOD:

No. 511,696. Paten-ted Dec. 26,1893.

(No Model.)

me NATIONAL Ln'HoeRAPmNe coMPAnY.

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(No Model.) s sheets-sheen 6.

G. HASS.

METHOD 0F AND APPARATUS FOR RBPRODUGING FACSIMILE GARVINGS 1N WOOD.

No. 511,696. Pajnt 'AraNt @marea 'oAnsAn nnss, or LoNDoN, ENGLAND.

METHOD 0F AND APPARATUS FOR REPRODUCING FAC-SIMILE CARVINGS IN WOOD.

SPECIFICATION forming part of Letters Patent No. 511,696, dated December 26, 1893.

Application iiled April S, 1893. Serial No. 469,538. (No model.) Patented in England March 10, 1893, No. 5,240.

T0 all whom it may concern:

Be it known that I, CAESAR HASS, a citizen of the United States of America, and a resident ofZQSBurdett Road,Limehouse,London, in the county of Middlesex, England, have invented a certain new and useful Improved Method of and Apparatus for Reproducing Fac-Simile Carvings in Wood and other Material, (patented in Great Britain on the 10th day of March, 1893, No. 5,240,) of which the following is a specification. 1

This invention has for its object the production of perfect and duly proportioned carved work from a pattern by means of a machine which if used directly would produce only an imperfect or distorted negative that is relatively incorrect but adapted to serve as a matrix from which a fac-simile of the original carving can be produced with said machine and negative.

According to my invention 1 construct a machine for carving wood, or like panels in relief, bas-relief, or other style by means of multiple cutters rapidly rotated in a particular manner and have imparted to them a vertical percussive movement by means of a rocking plate operated by a crank and necessary levers, said vertical percussive movement being regulated as to depth' and contour of cut by a negative or reverse design of the original carving intended to be reproduced. The negative or reverse design is fastened to the under sideof the before mentioned rocking plate and Vhas'in addition to its vertical movement for operating the cutters a transverse and automatic longitudinal motion over the top of the cutters that by means of Worm and belt gearing the cutters may be operated over all parts of the design for cutting the wood or other material (panel) fixed below them, said panel having precisely similar transverse and longitudinal movements as the negative or reverse design being in fact fixed to the base plate of the movable structure that carries the before mentined rocking plate.

I wish it to be particularly understood that in order to secure a correct copy of the original carving, it is necessary to obtain the negative or reverse design by the machine on which it is intended to be used; and for the following reasonsz-Tliat if a negative or reverse carving be obtained from the original carving in the well known manner and used in the machine before described the carving produced will differ from the original by the difference of the thickness of the cutter spindles used, that is to say all projections of the reproduced carving will be smaller than the original by the thickness of the cutter spindle and all depressions will be similarly enlarged resulting in a distorted representation of the original carving. It is therefore one of the peculiar features of my invention to use a distorted or as it were incorrect negative or reverse design toobtain a correct facsimile of the original carving said negative being produced by using the original carving or positive casting of said original carving as a guide for determining the operation of the cutter spindles in the manner before described whereby a negative is produced with its depressions corresponding to the projections of the guide larger by the thickness of the spindles and its projections similarly smaller so that when said negative is used as a guide in the machine by which it Was cut will result in the production of a perfect facsimile of the original.

In order that my invention may be clearly understood I have appended the accompanying drawings in which- Figure 1 is a side elevation of a machine constructed according to my invention with the side frame of the bed plate removed. Fig. 2, is a top'plan ofsame. View of part of the machine showing the transverse disposition of the cutter spindles and dummies. Fig. 4t is a plan with top parts removed to more clearly show the gearing arrangements. Fig. 5 is a detail sectional view of the cutters. Fig. 6 is a detail of the plate upon which the wood or panel to be carved i Fig. 3, is a front is fixed. Fig. 7, is a detail view showing the manner in which the multiple cutters are rotated by the belts.

In carrying my invention int-o practice I arrange upon a suitable lower frame A the bed plate B, to which is securely fixed by bolts D the side frames C, C, forming a superstructure for carrying the multiple spindles and cutters which revolve in bearings screwed into the top and bottom plates Drand E respectively. Arranget'l at a suitable distance above the spindles is another plate F, also fixed to the side frames C, C, by the studs G, G, and through which pass the dummy pins H corresponding in number and position to the revolving spindles or cutters before mentioned.

The frames I, I, are connected at the top by the cross beams J, J, and at the bottom they rest upon and are fixed by bolts to the the screw spindle m working in a nut depend plate K upon which the wood L or other material to be carved is placed. The beams J, J, also support a casting M with its countershaft N rotated in bearings P by a belt Q from a pulley R fixed to the shaftS supported by brackets T attached in any suitable manner to the beam J or side frames I as may be convenient.

Arocking plate U is suspended from the casting M to which it is articulated by the levers V pivoted at W to which is imparted a rocking motion `by the crank X and connecting Vrod, Y when the countershaft Nis set in motion', the plate U being guided by the studs Z uprising from the fixed framesI, I, to prevent any lateral movement of theplate U.

The whole` of the structure formed by the side frames I, I, plate K, cross beams J, casting M and their attachments have a compound sliding movement by means of the worm gear operated by the shafts a and b as hereinafter fully described.

vTo prevent any undue/strain or tilting action by the pull ofthe belt c upon the pulley Ita stretcher bare is arranged upon and between the shaftsb, S, in such a manner as to allowof the small longitudinal and transverse movement imparted to frames I, I, the arm f serving as an additional support.

The longitudinal and transverse movements of the frames I, I, and their attachments are effected by a Worm g fixed upon the shaft b gearing into a worm wheel h secured to one end of the shaft t' mounted in bearings j j projecting inwardly from the lower frame A and a worm wheel Z fixed to ing from a frame n upon which the plate K and its superstructure are arranged in such a manner as to be drawn transversely with the frame 'n' in the guide grooves p and yet be free rto move in a longitudinal direction upon the frame n under the action of worm q, worm wheel r, worm s, and rack t Fig. l fixed to the under side of the plate K, the necessary motion being communicated to the shafts a and I) frointhe main shaft u by belts.

The frames I, I, and attachments are caused to automatically move backward and forward by reversing the direction of rotation of the shaft ct. This is done by causing the straight and, crossed belts w, at, to be alternately shifted from the fast pulleys y, y, to the loose pulley r4, under the action of a slider A operated by the bell crank B or equivalent means from themovement of the side frame I itself.

The wood or other panel to be carved is fixed upon the platen C Fig. 6, by screwing` it to the metal or other suitable battens D chamfered at one edge to fit a corresponding undercut in the groove of the platen C into which it is fitted and secured by passing a wire E between the batten and the groove the curve on each side of same serving to bind them in position. Whenthe wire Eis removed the-panel and battens D can be shifted a little to the left to release the chamfer from the undercut before mentioned, and lifted out. The depth to which the panel is to be cut is regulated by raising the platen C by the hand wheel F, the pinion on the shaft of which gears into the wheel G (see Fig. 4) that in turn operates the wheels H', I', to rev olve the pinions J fixed to thestuds K having right and left handed screws, and as they all rotate aty the same circumferential speed the platen C is equally lifted from all sides to the necessary height. The mai-n sha-ft' is set in motion, the belts L pass around the drum M and are interlaced between the pulleys N of every alternate couple of spindlesl and around a dummy Q as 4she'wn in Fig. 7, the number of belts Il used corresponding tothe number of spindles arranged across the inachine. The Vspindles P revolve in conical bearings R screwed into vthe plates DCE, before mentioned. Within the spindles P and arranged to turn with them are the cutters S which are forcibly depressed into the panel to be carved by the movement of the rocking plate U and the negative V striking the pins H the depth to which they are forced corresponding to the varying undulations of the negative pattern. The cutters having a rapid rotary movement as well as a percussive striking action cut' away the wood to the pattern required, determined of course by the formation of the negative guide produced and operated as before described. Said cutters are returned to their uppermost position by the spiral springs T by which they are encircled and they abut up against preferably a zinc plate to deaden the sound.v Between each row of spindles are inserted strips of felting W soaked in oil to lubricate them in their bearings which are further kept cool by a strong 'current of air induced by a blower.

What I claim is-- 1. The method of producing perfect land IOC IIO

moving in opposite directions the rocking plate and the material to be carved, substantially as described.

3. In a carving machine, the combination of the grooved platen C', the chamfered battens D, the fastening Wires E inserted between the sides of the battens and the platen grooves, the screw studs K connected with the platen and provided with pinions J', the gears G H l connecting said pinions, and the hand Wheel F', substantially as described.

4. In a carving machine, the combination of a vertically adjustable platen provided with means for holding the material to be carved, a number of rotary and percussive cutters, a corresponding number of dummypins attached to the non-cutting ends of said 

